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Relational Edit Rule 51 - NFIRS

NFIRS Validation Rule: Relational Edit Rule 51

NFIRS Codes Cheat Sheet - NFIRS Coding - NFIRS Examples - FDIDs - POCs

NERIS replaced NFIRS in 2026
NERIS replaced NFIRS in 2026. See our NERIS resources.

NFIRS Relational Edit Rule 51

The NFIRS specification provides this definition for Relational Edit Rule 51:

Relational Edit Rule 51 — If Exposure Number > Zero (0) this element should be set to Other.
Responserack’s supplement:

Responserack’s copy of the above NFIRS definition, with (when available) NFIRS codes expanded:

Relational Edit Rule 51 - If Exposure Number > Zero (0) this Cause of Ignition should be set to Other.

Rule References
Entity  Reference 
Element Exposure Number
Element Cause of Ignition
 
NFIRS Documentation

For more details, see the FEMA NFIRS Documentation, for example the NFIRS 5.0 specification (PDF).

 
 
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NFIRS Coding ... NFIRS Cheat Sheet ...
 
 

For more information see the NFIRS Cheat Sheet, NFIRS Coding and contact Responserack to learn about our fire department software.